tire pressures

[cbreez]

The point was that you have ranges and opinions from 20's to 30's...all opinions that have gotten the poor guy that asked the question probably nowhere, well before my opinion. It's personal preference...not much more than that.

We aren't children here, your correlation about teaching is a bit of a stretch.
I guess you failed to see a bit of humor in my response. Lighten up! Concentrate on an answer for the gentleman, not a critique of someone's response.

Make it a great day!

[Naumoff]

I was the first and the second to respond to his question. So maybe that was all that was needed and the added comments like " it was talked about here before" or "beating a dead horse "wasn't needed. And I was not referring to anyone here as a child but an example of some people who want to help and does not belittle someone for asking a common question.
I also think you didn't see my smiley. so you might need to be the one to lighten up my friend.

[uncltodd]

Have we been here before? UT is running 17" sticky Nittos (I'm no purist) at 18 PSI.

Above that I get a steering wheel "quiver" or "shake," don't know why.

At 18 PSI the little car tracks like grandpa's Buick.

When is the last time you let go of the streering wheel for 10 seconds on the highway?

I know that at 18 PSI I'm using my tires like rubber erasers, I just just know what works for me.

Yes, two expensive 4-wheel alignments before I dropped the tire pressure.

OH! And she corners like a weasel in a drainpipe.

Just me, working with what I can find, in my location.

UT

[Rwillia4]

If anyone has read any of Cbreez past posts you will soon realize that he is not a positive contributor. He continues to cause issues. I have reported him to the moderators in the past. Until he is removed we will just have to deal with his negativity.

As far as for tire pressures I think the bigger difference between our cars is 15" and 17". What is good and works for one will not optimize the other, that extra side wall height will change things signifigantly. I would "guess" lower wall = lower pressure. Skip needs more input from 15" rollers

[cbreez]

I cause issues??? Other people on the forum bring up the issues
Reported me to the moderator??? for what? Prompting some thought?
Sounds like you need some serious therapy! You remind of the whiner in school in the background, agitating...sticking his nose in someone's business where it doesn't belong. One day he gets his butt kicked because of that. You act like you are about 12...is that true? Your smart a-- comments to everything I write, I am sure aren't appreciated by people on the forum.
You don't have to agree with my opinions and solutions...and please, by looking at yours you offer no knowledge at all , so be careful of your critiques.
You and that dealer in Ct (who uses this forum for free advertising!) have had the worst mouths of anyone I've read on this forum, you and he may be the one's kicked out!

[JBCOBRA]

I like 24 front and 22 rear. But , if I drop the rears down to 18, I can definately get better hook-up

[Secret Squirrel]

SkipB,

I have been trying different tire pressures too. Initially I was told to put 28psi front and 25psi rear. With 28psi in the front, I was getting a lot of steering wheel feedback from the road. I just tried 25psi Front and Rear on a trip to Yuma. It seemed to do real good. I have been having problems with steering wheel shake and I just rebalanced the tires and tightened up the streering rack pre-tension. I have eccentric rings already installed. The trip to yuma was an improvement from previous trips around the Valley. I only have steering wheel feedback on bumpy roads now, otherwise the steering wheel is steady.

[Bx1]

Originally Posted by Secret Squirrel

SkipB,

I have been trying different tire pressures too. Initially I was told to put 28psi front and 25psi rear. With 28psi in the front, I was getting a lot of steering wheel feedback from the road. I just tried 25psi Front and Rear on a trip to Yuma. It seemed to do real good. I have been having problems with steering wheel shake and I just rebalanced the tires and tightened up the streering rack pre-tension. I have eccentric rings already installed. The trip to yuma was an improvement from previous trips around the Valley. I only have steering wheel feedback on bumpy roads now, otherwise the steering wheel is steady.

Interesting comment re: steering wheel feedback.... because I experience that as well (28psi front) I will reduce air pressure and see if it is reduced...

[Speedysnake]

I've been fussing with front wheel / tire problems also, specifically the 15" BFGs. I found the lower the front tire pressure, the less vibration. I had them down to about 22 lbs. when I felt the steering became a little vague, (maybe not a good description) I'm back up to 25 lbs in the front & feel pretty good. 28 in the rear seems fine. It's OK for highway driving. I'm planning to go to the Reptile Roundup next month, if I get "hooked" I'll probably buy 17" rims & tires for the track.

[Bailey]

Speedy, Come find me at the Roundup. I'm in the yellow BDR #29. It's a great event. You WILL be hooked.
Cheers,
Richard

[ROUSHAC]

cbreez, just out of curiousity, do you actually own a Backdraft?

If you do, some pics of your car would be nice.

From your posts, it seems to not be a very good car. If it's so bad, please post who you bought it from so someone else doesn't make the same mistake. Also, why haven't you unloaded it if it's so bad?

Thanks!

[uncltodd]

Need some sideways advice..

I have been hammering 18 PSI for months here for my my 17" Nittos, but I have a Deadhorse Mustang club meet Nov. 17, 150-mile round trip and my DeadHorse Kids wanna see the Cobra.

Pump the tyres up to 20-22 lb for the highway, do you think?

It's a "Road Trip," I won't be driving, I physically can't. I trust my young driver.

I will be in Fat Girl, my Mustang, the chase car.

I'll be watching for blue smoke and flying parts.

But I worry about overheating the low-pressure tyres in an extended highway run.

Advice?

[cbreez]

Well Dave, we are talking tire pressures here, not about my car... I don't believe that my feelings towards the manufacturer come into play here, so why bring it up?
On this particular subject, it really doesn't matter what you drive...
Tire pressures are a very simple thing, and it's kind of funny to see how they have been complicated by what "seems" to be right for one person. Each tire made has a recommended pressure, that will affect it's footprint and the ultimate spring rate of the car. The will be several lbs. of tolerance on either side of that pressure. If you get rid of a shimmy by using tire pressure, you are masking the real problem, which is likely something bent or loose in the suspension. Today's manufacturing tolerances and techniques do not likely produce unround tires and wheels, though all need balancing. If your wheels and tires are balanced, and you have a shake or shimmy when you drive, there IS another problem. I do talk from years of experience, not some info I just Googled off the internet. I love to hear the "experts" use terms like..."it seems to", "they tend to", and similar expressions. Sorry, that's not convincing enough to me.
Man, you have to stick with the basics of physics to make intelligent choices...but it's really simple!
BTW, I do have 15" wheels, that run at 32-35 lbs of air, smooth as silk. All this talk that 17's are better than 15's is just hype.

[cbreez]

UT, pump em up. Low pressure, while ok for short hops, increases sidewall flex and heat in a tire on a long highway run...

[Poolw]

Recommended tire pressures in my Superformance owner manual say - -
for both front and rear - 18 psi (cold) for normal driving and 25 psi for performance driving/track. I run 20 in the rears and 23 in the fronts. The fastest cobra in my club runs 11 secs and he uses 12 psi at the drag strip and about 16 for highway.

I guess the best way is to put some chalk on the street and roll over it and then check your tire to see if it all covered or just covered in the center. Repeat until the entire width is chalk covered, being the best for your car.

[Cashburn]

If you think BFG 15" tires are round then you have not experienced tires that are. In general they exhibit more problems than others. And beyond that it is often the wheel. If you have no problems balancing up a set and getting no vibration you should consider yourself extremely fortunate. Backdraft does not make wheels or tires though. No google needed, it's all right here.

I pay quite a bit for those occasional banners ... but the stink continues to roll in off the "C". If you think 3 - 4lbs. is inconsequential then you obviously lack math skills and/or actual driving experience.

The key to finding the correct tire pressure for you is experimentation. Roads and conditions will vary with climates and temps. Many people report 28psi as good... try it. Then try 26psi... when it works it works. You have very little weight to worry about.

[Kzof]

Originally Posted by cbreez

I cause issues??? Other people on the forum bring up the issues
Reported me to the moderator??? for what? Prompting some thought?
Sounds like you need some serious therapy! You remind of the whiner in school in the background, agitating...sticking his nose in someone's business where it doesn't belong. One day he gets his butt kicked because of that. You act like you are about 12...is that true? Your smart a-- comments to everything I write, I am sure aren't appreciated by people on the forum.
You don't have to agree with my opinions and solutions...and please, by looking at yours you offer no knowledge at all , so be careful of your critiques.
You and that dealer in Ct (who uses this forum for free advertising!) have had the worst mouths of anyone I've read on this forum, you and he may be the one's kicked out!

Agreed. Heavy duty whining. Reporting? Must be the "Cobra Police"

[Cashburn]

Originally Posted by cbreez

increases sidewall flex and heat in a tire on a long highway run...

This of course would be proportional to weight/force on the tire yes?

[ROUSHAC]

Originally Posted by cbreez

Well Dave, we are talking tire pressures here, not about my car... I don't believe that my feelings towards the manufacturer come into play here, so why bring it up?

C'mon buddy, don't be so bashful. From the majority of your posts, it's obvious that you have a definite propensity for knocking Backdraft. I thought that you'd like to share some of the reasons why. Perhaps there's something more than the space for the license plate being too small that makes them a bad car.

I'm (along with I'm sure more than a few others) just a bit curious about how you obtained all your considerable knowledge about cars. For all we know, mabe you are just a BS artist. Then again, maybe you are as knowledgeable as you imply. Please share how you got all your experience with us so that we can have a little faith in your opinions.

[ROUSHAC]

By the way, Dennis Olthoff says to increase the pressure on street tires to about 28-30 psi on 17" tires on the track. I do have faith in his opinion.